Pinellas County (St. Petersburg)
September
Weather in Pinellas County for September 2025
Your guide to Pinellas County weather in September - trends and predictions
In general, the average temperature in Pinellas County at the beginning of September is 31.6 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 30.3 °F by the end of September.
Expect significant rainfall in Pinellas County during September, with an average of 19 rainy days.
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11
Dry days
19
Rainy days
0
Snow days
31°/25°
Temperatures
23 km/h
Avg max wind
72 %
Avg humidity
Pinellas County in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2  32° | 3  31° | 4 32° | 5 32° | 6 31° | 7 32° |
| 8  30° | 9  30° | 10 31° | 11 31° | 12  32° | 13 30° | 14 31° |
| 15 31° | 16 30° | 17 30° | 18 31° | 19 31° | 20 30° | 21  31° |
| 22 31° | 23  33° | 24 32° | 25 31° | 26  29° | 27 29° | 28 29° |
| 29 31° | 30 31° |
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Temperatures trend during September in Pinellas County
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Moderate or heavy rain shower | 31° /26° | 6.7 mm | 7 | |
| Sept. 2 | Overcast | 32° /25° | 2.2 mm | 7 | |
| Sept. 3 | Partly cloudy | 31° /25° | 3.1 mm | 8 | |
| Sept. 4 | Partly cloudy | 32° /25° | 4 mm | 8 | |
| Sept. 5 | Overcast | 32° /25° | 5.7 mm | 7 | |
| Sept. 6 | Overcast | 31° /26° | 0.1 mm | 7 | |
| Sept. 7 | Partly cloudy | 32° /26° | 1.6 mm | 8 | |
| Sept. 8 | Thundery outbreaks possible | 30° /26° | 6.3 mm | 7 | |
| Sept. 9 | Patchy rain possible | 30° /25° | 2.5 mm | 7 | |
| Sept. 10 | Patchy rain possible | 31° /26° | 5.9 mm | 7 | |
| Sept. 11 | Thundery outbreaks possible | 31° /26° | 10.2 mm | 7 | |
| Sept. 12 | Fog | 32° /26° | 1.1 mm | 7 | |
| Sept. 13 | Partly cloudy | 30° /26° | 1.3 mm | 7 | |
| Sept. 14 | Partly cloudy | 31° /27° | 1 mm | 7 | |
| Sept. 15 | Mist | 31° /26° | 1.2 mm | 7 | |
| Sept. 16 | Moderate or heavy rain shower | 30° /25° | 12.3 mm | 7 | |
| Sept. 17 | Overcast | 30° /25° | 0.9 mm | 7 | |
| Sept. 18 | Moderate or heavy rain shower | 31° /27° | 4.3 mm | 7 | |
| Sept. 19 | Light rain shower | 31° /25° | 2.7 mm | 8 | |
| Sept. 20 | Light rain shower | 30° /25° | 8.4 mm | 8 | |
| Sept. 21 | Light drizzle | 31° /23° | 24.6 mm | 8 | |
| Sept. 22 | Patchy rain possible | 31° /23° | 11.7 mm | 8 | |
| Sept. 23 | Cloudy | 33° /24° | 0 mm | 8 | |
| Sept. 24 | Moderate or heavy rain shower | 32° /24° | 8.2 mm | 8 | |
| Sept. 25 | Thundery outbreaks possible | 31° /25° | 22 mm | 7 | |
| Sept. 26 | Patchy light rain with thunder | 29° /25° | 33.5 mm | 7 | |
| Sept. 27 | Light rain shower | 29° /27° | 27.2 mm | 7 | |
| Sept. 28 | Light rain shower | 29° /26° | 10 mm | 6 | |
| Sept. 29 | Light rain shower | 31° /25° | 11.3 mm | 7 | |
| Sept. 30 | Patchy rain possible | 31° /25° | 3.1 mm | 8 | |
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Important Notice
Our weather forecast for Pinellas County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Pinellas County forecast closer to your planned date for the most up-to-date weather information.
Pinellas County in September - FAQ
What are the expected maximum and minimum temperatures in Pinellas County during September?
During September, expect a variety of temperatures with highs around 31° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Pinellas County during September?
Significant rainfall exceeding 135.4 mm is expected in Pinellas County during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Pinellas County during September?
The average wind speed in Pinellas County during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Pinellas County
Explore the daily rainfall trends and prepare for Pinellas Countys September weather 💧
UV exposure in Pinellas County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Pinellas County?Get accurate weather forecasts for Pinellas County, located at latitude 27.771 and longitude -82.679. Stay updated with localized weather information tailored for Pinellas County.
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